HubSpot Developer Blog

If you’ve built against HubSpot’s public APIs, you’ve probably run into some versioning friction: v3 vs v4, legacy vs “next-gen” APIs, and the occasional breaking change ...

NOTE: HubSpot Projects v2025.1 will now be deprecated ...

If you’ve integrated with HubSpot’s APIs, you know the OAuth ...

We're thrilled to announce the launch of comprehensive testing utilities for the HubSpot UI Extensions SDK—a feature that developers have been requesting since we first launched the platform. Today, building reliable, well-tested UI extensions ...

Developers don’t come to HubSpot asking for a tool. They come with a customer problem to solve. In our early days, they would meet documentation that explained how an API works, but not ...

HubSpot’s new Developer Platform is a modern, modular way to build, customize, and distribute apps. It’s built for flexibility ...

We rebuilt our developer docs and migrated to Mintlify. This wasn’t just a tooling upgrade. It was a shift in how we think about developer education in an AI-native world.

HubSpot just dropped what might be the most significant developer platform update we’ve ever seen. From

Today’s customers expect more than ever. They want to reach your business on their preferred channel and terms —through chat, email, voice, or social—and they expect you to know who they are, the moment they do. For developers and partners ...

At INBOUND 2025, HubSpot delivered one of its most ambitious rollouts yet—over 200 updates across the platform. From smarter ...